Turbulence fields form behind the turbines of the Donghai Bridge Wind Farm in Shanghai, China. These streaks occur when wind hits the turbines' towers or when certain meteorological conditions cause the turbines to create condensation (i.e. clouds) of very humid air.

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When I think about the ideas of "independence" or "freedom" on the 4th of July, I can't help but think about a trip where I was lucky enough to explore the national parks of the American West. The longstanding commitment to protect the beauty of our county's finest landscapes is something that I deeply appreciate about the country where I live.

My favorite destination on this trip was Crater Lake in Oregon. The lake's awe-inspiring, deep blue water sits in a crater that was formed 7,700 years ago by the collapse of a volcano. Rain and snowfall compensate for any evaporation as no rivers flow into or out of the crater. At 1,943 feet (592 m), the lake is the deepest in the United States. Happy Independence Day from Daily Overview!

7/3/2015

Moored houseboats

Yuba County, California, USA

39.42903°N 121.13010°W

Moored houseboats float peacefully on the New Bullards Bar Reservoir in Yuba County, California, USA. Hope you all have a wonderful weekend!

Olympic Stadium in Montreal, Canada was constructed for the 1976 Olympic Games. The stadium is home to the city's soccer and football teams and also features the world's largest inclined tower (574 feet). Hope all of our followers in Canada had a wonderful Canada Day yesterday!

The Port of Hamburg - known as Germany’s “Gateway to the World” - is located on the Elbe River in Hamburg. On an average day, the facility is accessed by 28 ships, 200 freight trains, and 5,000 trucks. In total, the port moves 132.3 million tonnes of cargo each year - that’s roughly 1/3 of the mass of all living human beings.

Greenhouses - also known as plasticulture - cover approximately 20,000 hectares of land (more than 75 square miles) in Almeria, Spain. The use of plastic covering is designed to increase produce yield, increase produce size, and shorten growth time. For a sense of scale, this Overview shows roughly six square miles.

The Glastonbury Festival concluded yesterday in Pilton, England. The annual, five-day music event was attended by more than 135,000 people. Concert-goers are provided a campsite at the venue but must bring their own tents - which vividly dot the landscape in this Overview. The population of Pilton on the other 360 days of the year is 998.

It’s been a really joyous weekend here in New York City and across the United States. The Grand Prismatic Spring in Yellowstone National Park shows its rainbow of vibrant colors (caused by the bacteria that grow around the edge of the mineral-rich water). Happy Pride from Daily Overview!

Tailings - the waste and byproducts from mining operations - are pumped into the Gribbens Basin next to the Empire and Tilden iron ore mines in Negaunee, Michigan, USA. Here, the materials are mixed with water to create a sloppy form of mud known as “slurry” that is pumped through magnetic separation chambers to increase the mine’s total output. For a sense of scale, this Overview shows approximately one square mile of the basin.

Östermalm is one of the largest districts in Stockholm, Sweden and contains the city's most expensive real estate. The Swedish capital is spread across fourteen islands and has a population of 850,000 in its urban area.